DE68917992T2 - Process for the production of granular porous chitosan. - Google Patents

Process for the production of granular porous chitosan.

Info

Publication number
DE68917992T2
DE68917992T2 DE68917992T DE68917992T DE68917992T2 DE 68917992 T2 DE68917992 T2 DE 68917992T2 DE 68917992 T DE68917992 T DE 68917992T DE 68917992 T DE68917992 T DE 68917992T DE 68917992 T2 DE68917992 T2 DE 68917992T2
Authority
DE
Germany
Prior art keywords
production
granular porous
porous chitosan
chitosan
granular
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
DE68917992T
Other languages
German (de)
Other versions
DE68917992D1 (en
Inventor
Chuichi Hirayama
Hirotaka Ihara
Junichi C O Kurita Water I Ida
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kurita Water Industries Ltd
Original Assignee
Kurita Water Industries Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kurita Water Industries Ltd filed Critical Kurita Water Industries Ltd
Publication of DE68917992D1 publication Critical patent/DE68917992D1/en
Application granted granted Critical
Publication of DE68917992T2 publication Critical patent/DE68917992T2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J3/00—Processes of treating or compounding macromolecular substances
    • C08J3/12—Powdering or granulating
    • C08J3/14—Powdering or granulating by precipitation from solutions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/22—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising organic material
    • B01J20/24—Naturally occurring macromolecular compounds, e.g. humic acids or their derivatives
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
    • C08B37/00—Preparation of polysaccharides not provided for in groups C08B1/00 - C08B35/00; Derivatives thereof
    • C08B37/0006—Homoglycans, i.e. polysaccharides having a main chain consisting of one single sugar, e.g. colominic acid
    • C08B37/0024—Homoglycans, i.e. polysaccharides having a main chain consisting of one single sugar, e.g. colominic acid beta-D-Glucans; (beta-1,3)-D-Glucans, e.g. paramylon, coriolan, sclerotan, pachyman, callose, scleroglucan, schizophyllan, laminaran, lentinan or curdlan; (beta-1,6)-D-Glucans, e.g. pustulan; (beta-1,4)-D-Glucans; (beta-1,3)(beta-1,4)-D-Glucans, e.g. lichenan; Derivatives thereof
    • C08B37/0027—2-Acetamido-2-deoxy-beta-glucans; Derivatives thereof
    • C08B37/003—Chitin, i.e. 2-acetamido-2-deoxy-(beta-1,4)-D-glucan or N-acetyl-beta-1,4-D-glucosamine; Chitosan, i.e. deacetylated product of chitin or (beta-1,4)-D-glucosamine; Derivatives thereof
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2305/00—Characterised by the use of polysaccharides or of their derivatives not provided for in groups C08J2301/00 or C08J2303/00
    • C08J2305/08—Chitin; Chondroitin sulfate; Hyaluronic acid; Derivatives thereof
DE68917992T 1988-05-30 1989-05-30 Process for the production of granular porous chitosan. Expired - Fee Related DE68917992T2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP63134001A JPH0643447B2 (en) 1988-05-30 1988-05-30 Method for producing granular porous chitosan

Publications (2)

Publication Number Publication Date
DE68917992D1 DE68917992D1 (en) 1994-10-13
DE68917992T2 true DE68917992T2 (en) 1995-04-20

Family

ID=15118062

Family Applications (1)

Application Number Title Priority Date Filing Date
DE68917992T Expired - Fee Related DE68917992T2 (en) 1988-05-30 1989-05-30 Process for the production of granular porous chitosan.

Country Status (4)

Country Link
US (1) US4975542A (en)
EP (1) EP0345017B1 (en)
JP (1) JPH0643447B2 (en)
DE (1) DE68917992T2 (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NZ231575A (en) * 1988-11-30 1992-04-28 Rhone Poulenc Sante An organosoluble chitosan derivative, preparation and use thereof
US5169535A (en) * 1989-09-22 1992-12-08 Kurita Water Industries Ltd. Method of removing endotoxin
US5525710A (en) * 1991-12-20 1996-06-11 Alliedsignal Inc. Highly porous chitosan bodies
JP2620039B2 (en) * 1991-12-20 1997-06-11 アライド−シグナル・インコーポレーテッド Porous crosslinked product of natural polymer material
US5328939A (en) * 1993-04-27 1994-07-12 Alliedsignal Inc. Rigid materials having high surface area and low density
DE4318094B4 (en) * 1993-06-01 2004-03-04 Stockhausen Gmbh & Co. Kg Superabsorbents, processes for their preparation and their use
DE19756086A1 (en) * 1997-12-17 1999-06-24 Ks Gleitlager Gmbh Production of chitosan pellets for binding heavy metals
US6130321A (en) * 1998-07-10 2000-10-10 Vanson, Inc. High tap density chitosan, and methods of production
KR100381387B1 (en) * 1998-12-30 2003-08-19 주식회사 효성 Manufacturing method of chitosan derivative
US7345165B2 (en) * 2001-09-25 2008-03-18 Jae Woon Nah Method for preparing water-soluble free amine chitosan
US6749748B1 (en) 2001-12-28 2004-06-15 Vanson Halosource, Inc. Methods for reducing the amount of contaminants in water
ES2704135T3 (en) * 2009-02-27 2019-03-14 Rohm & Haas Fast-curing carbohydrate composition
US11559543B2 (en) 2016-08-04 2023-01-24 Zenogen Pharma Co., Ltd. Immunostimulator, pharmaceutical composition, and food or beverage
CN114682178B (en) * 2022-04-07 2023-02-10 合肥工业大学 Shape memory type composite aerogel for inhibiting biofouling, preparation method and application thereof

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5616532A (en) * 1979-07-20 1981-02-17 Kureha Chem Ind Co Ltd Production of formed porous article of chitin
JPS5930722B2 (en) * 1981-09-30 1984-07-28 工業技術院長 Method for producing powdery porous chitosan
JPS60186504A (en) * 1984-03-07 1985-09-24 Lion Corp Preparation of chitosan having reduced molecular weight
JPS6140337A (en) * 1984-07-31 1986-02-26 Fuji Boseki Kk Production of granular porous chitosan
DE3527482A1 (en) * 1984-07-31 1986-02-06 Fuji Spinning Co., Ltd., Tokio/Tokyo METHOD FOR PRODUCING GRAINY POROUS CHITOSAN
US4619995A (en) * 1984-12-24 1986-10-28 Nova Chem Limited N,O-carboxymethyl chitosan and preparative method therefor
JPS6279201A (en) * 1985-10-01 1987-04-11 Fuji Boseki Kk Production of porous granular n-acylated chitosan
GB2195344B (en) * 1986-08-19 1991-05-08 Showa Denko Kk Adsorbent composed of porous beads of chitosan and adsorption method using same

Also Published As

Publication number Publication date
JPH01301701A (en) 1989-12-05
DE68917992D1 (en) 1994-10-13
EP0345017B1 (en) 1994-09-07
EP0345017A1 (en) 1989-12-06
JPH0643447B2 (en) 1994-06-08
US4975542A (en) 1990-12-04

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee